.u2 {
    width: 100px;
    float: left;
    margin-top: 4px;
}
.img-element{
    float: right;
    margin-right: 40px;
    margin-top: -2px;
}
.u3 {
    display: flex;
    align-items: center;
    padding: 10px 100px;
}

.u3 span {
    margin-left: 20px;
}

.u1 {
    float: right;
    width: 20%;
    margin-top: 10px;
}

.u4 {
    float: left;
    width: 80%;
}
main {
    padding: 50px;
}
.product-info h1 {
    margin-bottom: 20px;
}
.purchase-options {
    width: 50%;
}

.option-item {
    margin-bottom: 30px;
}

.purchase-way {
    border: 2px solid #007BFF;
    padding: 5px 10px;
    width: 140px;
    height: 120px;
}
.interest-free {
    color: red;
}
.spec-container {
    display: flex;
    gap: 10px;
    margin: 20px 0;
}
.spec-item {
    border: 2px solid #ccc;
    padding: 15px;
    width: 140px;
}
.spec-item.active {
    border-color: #007BFF;
    width: 140px;
}
.discount-tag {
    background-color: #ffcc00;
    padding: 5px 10px;
    margin-bottom: 10px;
}
.config-list {
    list-style: none;
    padding: 0;
    margin-bottom: 15px;
}
.config-list li {
    margin: 8px 0;
    font-size: 16px;
}
.price-old {
    color: #999;
    display: block;
    margin-bottom: 5px;
}
.price-new {
    font-size: 18px;
    margin-bottom: 5px;
}
.monthly-payment {
    color: #666;
}
.a1{
    width: 245px;
}
.a2{
    text-align: center;
}
.a3{
    float: left;
}
.summary-container {
    width: 400px;
    margin: 0 auto;
    padding: 20px;
    background-color: #f5f5f5;
    float: right;

}
.product-summary {
    margin-bottom: 20px;
}
.product-name {
    font-size: 24px;
    font-weight: bold;
    margin-bottom: 10px;
}
.price-old {
    color: #999;
    text-decoration: line-through;
}
.price-new {
    font-size: 18px;
    font-weight: bold;
    margin-left: 10px;
}
.config-item {
    margin: 10px 0;
    color: #666;
}
.subtotal-section {
    border-top: 1px solid #e0e0e0;
    padding-top: 20px;
    margin-bottom: 20px;
}
.subtotal {
    font-size: 20px;
    font-weight: bold;
    margin-bottom: 10px;
}
.payment-info {
    text-align: right;
}
.payment-in{
    text-align: left;
}
.next-btn {
    display: block;
    width: 100%;
    padding: 12px;
    background-color: #007BFF;
    color: white;
    border: none;
    border-radius: 4px;
    font-size: 18px;
    cursor: pointer;
    margin-bottom: 20px;
}
.return-link {
    text-align: center;
    margin-bottom: 20px;
}
.return-link a {
    color: #007BFF;
    text-decoration: none;
}
.service-info {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
}
.service-item {
    display: flex;
    align-items: center;
    gap: 8px;
    color: #666;
}
.asd{
    float: left;
    width: 60%;
    font-size: 14px;
    color: #666;
}
.footer-container {
    display: flex;
    margin: 0 auto;
    background-color: #f8f8f8;
    float: left;
    width: 100%;
}
.footer-column {
    margin-left: 80px;
}

.footer-column:last-child {
    margin-right: 0;
}

.column-title {
    font-size: 16px;
    font-weight: bold;
    margin-bottom: 15px;
}

.column-list {
    list-style: none;
    padding: 0;
}

.column-list li {
    margin-bottom: 10px;
}

.column-list a {
    color: #333;
    text-decoration: none;
}
.x1{
    float: left;
    padding: 0 50px;
    background-color: #f5f5f5;
    width: 93%;
}